先祝各位小伙伴圣诞快乐，写一个圣诞动画送给大家，写的是小程序端的，大家可以自己改成web端，由于素材的限制写得比较简陋，大家看看就好哈；话不多说上源码

wxml

<!--components/christmas/christmas.wxml-->
<view class="christmas_container" catchtouchmove="move" bindtap="onClick">
  <view class="title">
      <image src="cloud://frankieqi-9gur2q1x49d1ebbc.6672-frankieqi-9gur2q1x49d1ebbc-1304442932/happy.png"></image>
  </view>
  <view class="snow">
      <view class="snow1"></view>
      <view class="snow2"></view>
      <view class="snow3"></view>
  </view>
  <view class="tree">
      <view>
          <text></text>
          <text></text>
      </view>
      <view>
          <text></text>
          <text></text>
      </view>
      <view>
          <text></text>
          <text></text>
      </view>
      <view>
          <text></text>
          <text></text>
      </view>
      <view>
          <text></text>
          <text></text>
      </view>
  </view>
  <view class="people">
    <image src="cloud://frankieqi-9gur2q1x49d1ebbc.6672-frankieqi-9gur2q1x49d1ebbc-1304442932/chirsmes.png"></image>
  </view>
</view>

wxss

/* components/christmas/christmas.wxss */
view text {
  margin:0;
  padding: 0;
  box-sizing: border-box;
}
.christmas_container {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #001f00;
}
.christmas_container::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: #fff;
  height: 250rpx;
}
.tree {
  position: relative;
  bottom: 10rpx;
  width: 400rpx;
  height: 400rpx;
  /* background: rgba(0,0,0,.1); */

}
.tree::before {
  position: absolute;
  content: "";
  bottom: -300rpx;
  left: 0;
  width: 100%;
  height: 100rpx;
  border-radius: 50%;
  background: rgba(0,0,0,.1);
}
.tree::after {
  content: '';
  position: absolute;
  bottom: -240rpx;
  left: 50%;
  transform: translateX(-50%);
  width: 60rpx;
  height: 40rpx;
  background: #734500;
}
.tree view {
  position: absolute;
  width: 100%;
  height: 200rpx;
  bottom: -200rpx;
  display: flex;
}
.tree view:nth-child(2) {
  transform: translateY(-100rpx) scale(0.8);
  z-index: 1;
}
.tree view:nth-child(3) {
  transform: translateY(-175rpx) scale(0.6);
  z-index: 1;
}
.tree view:nth-child(4) {
  transform: translateY(-240rpx) scale(0.4);
  z-index: 1;
}
.tree view:nth-child(5) {
  transform: translateY(-280rpx) scale(0.2);
  z-index: 1;
}
.tree view text {
  position: relative;
  width: 50%;
  height: 100%;
  display: block;
  overflow: hidden;
}
.tree view text:nth-child(1):before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 200%;
  height: 100%;
  background: linear-gradient(#00b300,#0f0);
  border-top-left-radius: 110% 100%;
  border-top-right-radius: 0% 100%;
  border-bottom-left-radius: 50% 20%;
  border-bottom-right-radius: 50% 20%;
}
.tree view text:nth-child(2):before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 200%;
  height: 100%;
  background: linear-gradient(#00b300,#0f0);
  border-top-left-radius: 0% 100%;
  border-top-right-radius: 110% 100%;
  border-bottom-left-radius: 50% 20%;
  border-bottom-right-radius: 50% 20%;

}
.snow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}
.snow .snow1 {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('https://uploadfile.huiyi8.com/2014/0227/20140227102820171.jpg');
  z-index: 1000;
  mix-blend-mode: screen;/*牛逼*/
  animation: animate 2s linear infinite;
  transform: scale(2);
}
.snow .snow2 {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('https://uploadfile.huiyi8.com/2014/0227/20140227102820171.jpg');
  z-index: 1000;
  mix-blend-mode: screen;/*牛逼*/
  animation: animate 5s linear infinite;
  transform: scale(1);
  filter: blur(1rpx);
}
.snow .snow3 {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('https://ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=1888909580,1624588087&fm=26&gp=0.jpg');
  z-index: 1000;
  mix-blend-mode: screen;/*牛逼*/
  animation: animate 5s linear infinite;
  transform: scale(1.5);
}
.people image{
  position: absolute;
  bottom: 0;
  left: 0;
  width: 120rpx;
  height: 120rpx;
  animation: people 3s ease infinite;
}
@keyframes animate {
  0% 
  {
      background-position: 0 0;
  }
  50% {
    background-position: 0 350rpx;
  }
  100% {
      background-position: 0 700rpx;
  }
}
@keyframes word {
  0% {
    opacity: 0;
  }
  50% {
    opacity: .6;
  }
  75% {
    opacity: 1;
  }
  100% {
    opacity: .5;
  }
}
@keyframes people {
  0% {
    left: 0;
  }
  50% {
    left: 50%;
  }
  100% {
    left: 100%;
  }
}
.title {
  position: absolute;
  top: 0rpx;
}
.title image{
  width: 620rpx;
  animation: word 3s linear infinite;
}

修改成web端

把view替换成div；把text替换成span；把rpx替换成px；即可

素材：